--TEST--
Bug #77193 Infinite loop in preg_replace_callback
--EXTENSIONS--
filter
--FILE--
<?php
$text = '{CCM:CID_2}';
echo '1';
$mt = array();
preg_replace_callback(
    '/([0-9]+)/i',
    function ($matches) {
        echo $matches[1];
        filter_var('http', FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => '/^http$/i']]);
    },
    $text
);
echo '3', "\n";
?>
--EXPECT--
123